Home / 258,450.93-387,339.46-131,984.58

Finding the Fourth Proportional to 258,450.93, 387,339.46 and 131,984.58

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Solution

The fourth proportional to 258,450.93, 387,339.46 and 131,984.58 is: 197,804.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,450.93 : 387,339.46 = 131,984.58 : x
  2. Step 2: Convert to fraction form
    258,450.93/387,339.46 = 131,984.58/x
  3. Step 3: Cross multiply
    258,450.93x = 387,339.46 × 131,984.58
  4. Step 4: Simplify right side
    258,450.93x = 51,122,834,159.00
  5. Step 5: Solve for x
    x = 51,122,834,159.00/258,450.93
  6. Step 6: Final answer
    x = 197,804.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.